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'31 P NMR Spectroscopy' in keywords Facet   section ZfN Section B  [X]
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1980 (1)
1Author    Marianne Baudler, Thomas Pontzen, Josef Hahn, Hans Ternberger, Wolfgang FaberRequires cookie*
 Title    Beiträge zur Chemie des Phosphors, 96 [1] Darstellung und P-Kernresonanzspektrum von isotopen-substituiertem Trilithium-heptaphosphid, 6 Li3P7 Contributions to the Chemistry of Phosphorus, 96 [1] Preparation and 31 P NMR Spectrum of Isotopicly Substituted Trilithiumheptaphosphide, 6 Li3?7  
 Abstract    The Pv-skeleton of trilithiumheptaphosphide, Li3P7 (1), was proved to possess the earlier reported tricyclic structure [2] by complete analysis of the 31 P NMR spectrum of 6Li3P7 observed at — 60 °C. The 6 Li isotopic substitution was carried out to avoid the line broadening caused by the large quadrupole moment of the 7 Li isotope. The unambiguous elucidation of the LisP7 structure confirmed that the exchange process which causes all P atoms to become equivalent above room temperature is analogous to that in bullvalene. A comparison of the chemical shifts with those of (Me3Si)3P7 leads to the result that the P7-skeleton in LisP7 is noticeably compressed along its threefold axis, thus indicating a predominant ionic character. 
  Reference    Z. Naturforsch. 35b, 517—521 (1980); eingegangen am 29. Februar 1980 
  Published    1980 
  Keywords    Trilithiumheptaphosphide-6 Li3, 31 P NMR Spectroscopy, Fluctuating Molecule 
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 TEI-XML for    default:Reihe_B/35/ZNB-1980-35b-0517.pdf 
 Identifier    ZNB-1980-35b-0517 
 Volume    35